Kennebunk Beach Surf Break

Lat Long: 43.34° N 70.51° W

Kennebunk Beach Surf Forecast and Surf Report

Issued: 1 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kennebunk Beach sea temperature is
19.3° C
1.0° 

Kennebunk Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kennebunk Beach surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 11PM (local time) - 3.5ft (1.0m), 8s period, SE swell with glassy winds.
  • Most powerful swell: Tuesday 18 Aug, 8PM (local time) - 3.5ft (1.0m), 8s period, SE swell with 142 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 3.5ft (1.0m), 8s period with SE swell.

Best Forecast Surf Conditions for Kennebunk Beach this week:

The surf forecast for Kennebunk Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 1.0m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kennebunk Beach in the next 16 days are 1.0m 8s and forecast to arrive on Tuesday (Aug 18) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 23) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 18th Aug)3.5ft (1.0m) 8s
Best Surf11PM (Tue 18th Aug)3.5ft (1.0m) 8s
Most Powerful 8PM (Tue 18th Aug)3.5ft (1.0m) 8s

Table - best surf conditions forecast for Kennebunk Beach over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s get real about Kennebunk Beach. The next two weeks are a marathon of small, weak surf, and honestly, there’s not a single day that screams "drop everything and go." We’re looking at a long stretch of tiny, short-period waves that are barely scratching the surface.

The first real pulse of energy doesn’t show up until late in the game. Right now, through the rest of August and into the start of September, it’s a flat spell. The swell is tiny, mostly from the SE, with heights barely cracking 3ft. The wind is all over the place, but even when it’s glassy or offshore, the waves are just too small to get excited about. The combined energy is weak, rarely breaking 100 (like 27, 73, 72), so it’s just a lot of small, sloppy water.

We hit a bit of a turning point on Wednesday, August 26th, afternoon. The swell jumps up to a 2ft SE swell, but the period stretches to 15 seconds, and the energy finally climbs to 226 (moderate). The wind turns gentle offshore from the NE, cleaning things up. The comment says "surfable waves but very ordinary," and that’s the honest truth. It’s the first hint of something better, but still nothing to write home about.

The Thursday, August 27th morning and afternoon keep that moderate energy (201 and 172) with a solid offshore breeze from the NE and ENE. The swell is still only 2ft, but that 12-13 second period means it’s a proper groundswell, giving it a bit more shape. It’s the best of a bad bunch, but it’s still a marginal call.

The real standout, and I mean the only one worth a special mention, is the Sunday, August 30th. The afternoon sees a 5ft SE swell, with a 13-second period, and the combined energy rockets to 1374 (very strong). The wind is a gentle cross-off from the north. That’s a big, clean wall of water for a sheltered spot. The score is a 2/10, but compared to the rest of this forecast, it’s the top of the pops. A 5ft swell at a beach break with that much energy might be a bit much for beginners, but for the experienced crew, it’s the only window that looks proper.

The Monday, August 31st morning goes glassy with a 3ft ESE swell, but the energy drops back to 186. It’s another "surfable but ordinary" session.

The long and short of it: the first week is a total write-off. The second week has a few days with better energy and cleaner wind, but the swell size is still small. The Sunday, August 30th afternoon is the one to circle on the calendar. Don’t get your hopes up for anything else.

The water temp is sitting at 67°, which is about 2° warmer than normal for this time of year. That’s a nice little bonus, but it won’t make the waves any bigger.

Stay patient, keep an eye on the charts, and don't burn the gas money for a knee-high dribble.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu afternoon. Warm (max 25°C on Wed afternoon, min 16°C on Thu afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Sun night. Warm (max 22°C on Fri afternoon, min 14°C on Sun afternoon). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
9
0.6
SE
9
1
SE
8
0.8
SE
7
0.8
SE
7
0.8
SE
6
0.8
SE
8
0.6
SE
7
0.6
ESE
8
0.6
ESE
8
0.6
ESE
8
0.6
ESE
8
0.5
ESE
8
0.4
ESE
8
0.4
ESE
7
0.8
ESE
5
0.7
E
5
0.4
SE
12
0.4
SE
12
0.4
SE
11
0.4
SE
11
Wave Graph
Metric surfscale
Energy kJ
12
64
119
69
65
47
69
43
40
43
51
43
35
23
21
26
23
35
34
32
30
Wind (km/h)
10
ENE
10
ESE
5
W
10
S
10
SSE
10
W
5
N
10
NNW
5
NW
10
NE
15
SSE
10
NW
10
ENE
10
SE
10
E
20
E
20
NE
5
NE
20
WSW
20
W
15
WSW
Wind State
cross-off
cross-off
glassy
cross-on
cross-on
cross-on
glassy
cross-off
cross
off
cross-on
cross
cross-off
cross
cross-off
cross-off
off
glassy
on
cross-on
cross-on
High Tide
4:12PM2.79m
4:45AM2.46m
5:01PM2.69m
5:42AM2.32m
5:55PM2.61m
6:41AM2.23m
6:52PM2.56m
7:42AM2.20m
7:51PM2.56m
8:41AM2.23m
8:47PM2.61m
9:34AM2.30m
9:39PM2.69m
Low Tide
9:54AM0.26m
10:30PM0.26m
10:42AM0.42m
11:27PM0.36m
11:35AM0.56m
00:28AM0.44m
12:33PM0.65m
1:31AM0.46m
1:33PM0.67m
2:31AM0.44m
2:31PM0.64m
3:25AM0.38m
3:24PM0.56m
4:11AM0.30m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
mod rain
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
5:52
5:54
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:40
7:38
7:37
7:36
7:34
7:32
7:30
 mm
9
2
2
8
Temp °C
21
21
19
22
25
25
21
19
17
21
22
20
19
19
19
18
16
15
22
26
20
Feels °C
22
22
21
23
25
26
23
19
18
20
19
18
17
16
19
16
13
16
19
22
17
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Kennebunk Beach Surf forecast

The above surf forecast table for Kennebunk Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennebunk Beach can be found by selecting the local surf guide option on the grey menu. Our Kennebunk Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kennebunk Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kennebunk Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Kennebunk Beach is 17 km (11 miles) from Biddeford. If you plan a vacation in Maine, look for hotels and other accommodation in Biddeford. Biddeford has rooms for a wide range of budgets as well as car hire and transport links.

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